cros: Move wallpaper after login screen is gone

chrome/browser/chromeos/login/screens/error_screen.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/screens/error_screen.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 279 matching lines @@
       IDR_CONNECTIVITY_DIAGNOSTICS_MANIFEST,
       base::FilePath(extension_misc::kConnectivityDiagnosticsPath));
 
   const extensions::Extension* extension =
       extension_service->GetExtensionById(extension_id, true);
   OpenApplication(AppLaunchParams(
       profile, extension, extensions::LAUNCH_CONTAINER_WINDOW,
       WindowOpenDisposition::NEW_WINDOW, extensions::SOURCE_CHROME_INTERNAL));
   KioskAppManager::Get()->InitSession(profile, extension_id);
 
-  session_manager::SessionManager::Get()->SessionStarted();
-
-  LoginDisplayHost::default_host()->Finalize();
+  LoginDisplayHost::default_host()->Finalize(base::BindOnce(
+      [] { session_manager::SessionManager::Get()->SessionStarted(); }));
 }
 
 void ErrorScreen::OnLaunchOobeGuestSession() {
   DeviceSettingsService::Get()->GetOwnershipStatusAsync(
       base::Bind(&ErrorScreen::StartGuestSessionAfterOwnershipCheck,
                  weak_factory_.GetWeakPtr()));
 }
 
 void ErrorScreen::OnLocalStateErrorPowerwashButtonClicked() {
   chromeos::DBusThreadManager::Get()
@@ skipping 38 matching lines @@
   }
 
   if (guest_login_performer_)
     return;
 
   guest_login_performer_.reset(new ChromeLoginPerformer(this));
   guest_login_performer_->LoginOffTheRecord();
 }
 
 }  // namespace chromeos